Even the names of the chemicals are not very likely. We have felt that the book a name, and on the bag another name was used (both names for the same thing, but how do know that the layman!). Something goes not natural!
Overall, the experiments are already great, and the crystals also work reasonably (partly for weeks ...), but who is researched on the net correct instructions for basic selbermachen z. B. with salt and food coloring.
The package is suitable for all who want to have it all together (accessories and components), where you have so few have in the household (pot, glass vessel, stirrer o. Ä.). Cool gift, you have to admit it, but will look like with the knowledge that it probably is not on the cover and lasts indefinitely ....
